Coginchaug River

The Mattabesset River as delineated on present-day maps flows out of Harts Ponds in the town of Berlin and travels 16.1 miles (25.9 km) east to the Connecticut River, passing Kensington and later forming the boundary between Middletown and Cromwell.Further south, the Coginchaug River (or "winding meadow") flows from an upland meadow in Durham, northwards to the Mattabesset just upstream of that river's junction with the Connecticut. This river was the route to the portage place, located near Palmer Field, just below Sowheag's main stronghold at Indian Hill. Since it was the old western boundary of the incorporated City of Middletown, it was also called the West River, and also, for no known reasons, it was given other names, including the Sebethe River and the Arrawanna River. Presumably the word Mattabeseck was never considered properly euphonious, and various local individuals tried to improve on the name poetically.

The Arrigoni Bridge, also known locally as the Portland Bridge is a steel through arch bridge carrying Route 66 and Route 17 across the Connecticut River, connecting Middletown, Connecticut, to Portland, Connecticut. When it opened in 1938, the 1,200 feet (370 m) bridge was the most expensive bridge ever built in Connecticut, at a cost of $3.5 million. Its two distinctive 600 feet (180 m) steel arches have the longest span length of any bridge in the state. The bridge has an average daily traffic of 33,600.It was named after state legislator Charles J. Arrigoni, who promoted the project. Arrigoni served in the Connecticut House of Representatives from 1933 to 1936 and in the Connecticut State Senate from 1937 to 1940.

The Jacob Pledger House is a historic house at 717 Newfield Street in Middletown, Connecticut. Built in 1803, it is one of only five surviving brick Federal style houses in the city. It was listed on the National Register of Historic Places in 1982. It now houses professional offices.

O'Rourke's Diner is a diner located in the Main Street Historic District in Middletown, Connecticut.

The Portland Brownstone Quarries are a set of historic quarries in Portland, Connecticut. The brownstone mined from these quarries was an important source for construction in the latter half of the 19th century. The stone from these quarries was used in a number of landmark buildings in Chicago, Boston, New York City, Philadelphia, Baltimore, Washington, D.C., New Haven, Connecticut, and Hartford. The site was listed as a National Historic Landmark, which also placed it on the National Register of Historic Places, on May 16, 2000.

The Middletown–Portland railroad bridge is a swing truss railroad bridge crossing the Connecticut River and Route 9 in Middletown, Connecticut, just south of the Arrigoni Bridge. The bridge is a Warren through-truss swing bridge with an overall length of 1,142 ft (348 m) and a rotating center span. It is used by the Providence and Worcester Railroad to serve freight customers in Portland.The first rail bridge at the site was constructed by the Boston and New York Air-Line Railroad in 1873. It was replaced by the current bridge in 1911. The bridge was featured prominently in the video for the 1993 Billy Joel hit "The River of Dreams".

The Washington Street Historic District encompasses a residential area of Middletown, Connecticut that has a long history as a fashionable and desirable neighborhood. Extending along Washington Street and Washington Terrace between Main and Jackson Streets, the area has a broad diversity of residential architecture dating from 1752 to 1931, reflecting the city's patterns of growth. The district was listed on the National Register of Historic Places in 1985.

St. Luke's Home for Destitute and Aged Women was incorporated by an act of the Connecticut State Assembly on June 22, 1865. For twenty-seven years the home was conducted in an old house on the southwest corner of Court and Pearl Street. in 1892 a large legacy enabled a new home to be erected at the present site at Pearl and Lincoln Streets. Comfortable quarters are provided for fourteen women. Members of the Church of the Holy Trinity played a large part in establishing the endowment; frequently the current rector of that church serves as president of the Board of Trustees. The substantial brick building looks like a carefully designed apartment house, rather than an institution. At three-and-a-half stories tall, the first floor is partly below ground level. A long run of brownstone steps leads to a center entrance door on the second floor level. Two bay window piers flank the front entrance, capped off above the roof line by gable-roofed dormers. Decorative elements such as the wrought iron fence, ivy on the facade, and quoin-like brick projections on all corners add a picturesque quality to the building.The large brick institutional building dominates the area by its mass and corner siting at Pearl and Lincoln Streets in Middletown's residential North End. It forms a dividing line between large structures to the south towards Washington Street and more modest late Victorian era worker homes to the north.

Saint Sebastian is a Roman Catholic church in Middletown, Connecticut, part of the Diocese of Norwich.

The Church of the Holy Trinity is an historic Episcopal church at 381 Main Street in Middletown, Connecticut. Completed in 1874, it is one of the city's finest examples of Gothic Revival architecture. Its nearby former rectory, also known as the Bishop Acheson House, is one of its finest Colonial Revival houses. The two buildings were listed on the National Register of Historic Places in 1979.

The Arrawanna Bridge is a historic bridge, spanning the Coginchaug River near Berlin Street in Middletown, Connecticut, USA. Built in 1918, it is an early example in the state of an open-spandrel concrete arch bridge, and is one of the state's oldest bridges. It was listed on the National Register of Historic Places in 2004. The bridge is now closed to all traffic.

Middletown is a city in Middlesex County, Connecticut, United States. Located along the Connecticut River, in the central part of the state, it is 16 miles (26 kilometers) south of Hartford. Middletown is the largest city in the Lower Connecticut River Valley Planning Region. In 1650, it was incorporated by English settlers as a town under its original Native American name, Mattabeseck, after the local Wangunk village of the same name. They were among many tribes along the Atlantic coast who spoke Algonquian languages. The colonists renamed the settlement in 1653. When Hartford County was organized on May 10, 1666, Middletown was included within its boundaries. In 1784, the central settlement was incorporated as a city distinct from the town. Both were included within newly formed Middlesex County in May 1785. In 1923, the City of Middletown was consolidated with the Town, making the city limits extensive. Originally developed as a sailing port and then an industrial center on the Connecticut River, it is now largely residential. Its downtown, based on Main Street, serves as a popular retail, dining, and bar district near Wesleyan University. Middletown was the county seat of Middlesex County from its creation in 1785 until the elimination of county government in 1960. As of the 2020 census, the city had a total population of 47,717. Middletown, Connecticut is considered the southernmost city in the Hartford-Springfield Knowledge Corridor Metropolitan Region, which features a combined metro population of 1.9 million. Middletown is largely a politically progressive city, and is home to one of the largest pride events in all of Connecticut.